CN215606979U

CN215606979U - Wheelchair with stair climbing function

Info

Publication number: CN215606979U
Application number: CN202122246317.1U
Authority: CN
Inventors: 郁志明
Original assignee: Wuxi Peoples Hospital
Current assignee: Wuxi Peoples Hospital
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-01-25
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a wheelchair with a stair climbing function, which comprises a bottom plate, a seat frame, a telescopic plate and guide wheels, wherein the seat frame is fixedly arranged at the top end of the bottom plate, the telescopic plate is slidably arranged at the left end of the bottom plate, the guide wheels are fixedly arranged on the left sides of the front end and the rear end of the bottom plate, a driving motor is fixedly arranged on the right side of the bottom end of the bottom plate, rotating shafts are symmetrically arranged at the front end and the rear end of the driving motor, the rotating shafts are rotatably arranged at the bottom end of the bottom plate, and a triangular disc is rotatably arranged at one end, far away from the driving motor, of each rotating shaft. The utility model not only can facilitate the work of the driving motor through the design of the driving gear and the driven gear to simultaneously drive the three idler wheels to rotate through the rotating shaft, but also can drive the supporting wheel to move to be attached to the ground through the electric push rod so as to jack up the guide wheel, and can also push the hexagonal prism to move through the linkage of the inclined block and the rotating rod, thereby realizing the fixed connection of the triangular plate and the rotating shaft.

Description

Wheelchair with stair climbing function

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair with a stair climbing function.

Background

The wheelchair is a chair provided with wheels and capable of helping to replace walking, is divided into electric and manual folding wheelchairs and is an important moving tool for home rehabilitation, turnover transportation, diagnosis and outgoing activities of wounded persons, patients and disabled persons.

The wheelchair that uses at present has certain defect, lacks convenient stair function of climbing, causes the wheelchair to meet and needs the manual work to carry when stair, has reduced the convenience that the wheelchair used, consequently, proposes a wheelchair that has the function of going up stair and seems very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a wheelchair with a stair climbing function.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a wheelchair with a stair climbing function comprises a bottom plate, a seat frame, a telescopic plate and guide wheels, wherein the seat frame is fixedly arranged at the top end of the bottom plate, the left end of the bottom plate is slidably provided with a telescopic plate, the left sides of the front end and the rear end of the bottom plate are both fixedly provided with guide wheels, the right side of the bottom end of the bottom plate is fixedly provided with a driving motor, and the front end and the rear end of the driving motor are symmetrically provided with rotating shafts which are rotatably arranged at the bottom end of the bottom plate, one end of the rotating shaft, which is far away from the driving motor, is rotatably provided with a triangular disc, the rotating shaft extends into the triangular disc and is fixedly provided with a driving gear, grooves are arranged at the triangular positions of the triangular disc, and a rotating pin is rotatably arranged in the groove, a driven gear and a roller wheel are fixedly arranged on the annular side surface of the rotating pin, and the driven gear is fixedly connected with the roller, and the annular side surface of the driven gear is meshed with the annular side surface of the driving gear.

Furthermore, electric push rods are fixedly arranged at the front end and the rear end of the bottom plate through connecting rods, and supporting wheels are arranged at the bottom ends of the electric push rods.

Further, the supporting wheel is kept away from bottom plate one end fixed mounting and is had the sloping block, both ends intermediate position fixed mounting has U type frame around the bottom plate, and the inside rotation of U type frame installs the dwang, the dwang left end is laminated with the sloping block mutually.

Further, the hexagonal hole has been seted up to the triangle dish one end of keeping away from the bottom plate, and hexagonal downthehole slidable mounting has hexagonal prism, the hexagonal prism is kept away from triangle dish one end and is laminated mutually with the dwang right-hand member.

Further, a circular plate is fixedly mounted at one end, away from the triangular disc, of the hexagonal prism, a spring is fixedly mounted at one end, close to the triangular disc, of the circular plate, the other end of the spring is fixedly mounted on the triangular disc, and the spring is located on the outer side of the hexagonal prism.

Furthermore, a hexagonal groove is formed in one end, where the driving gear is fixedly installed, of the rotating shaft, the hexagonal groove is aligned with the hexagonal prism in the front and back direction, and the size of the cross section of the hexagonal groove is the same as that of the cross section of the hexagonal prism.

Further, the bottom plate top fixed mounting has the battery, and the battery carries out electric connection with driving motor and electric putter respectively through the wire.

Furthermore, two handle rods are symmetrically and fixedly installed at the right end of the seat frame, and anti-skid grains are formed in the annular side face of each handle rod.

The utility model has the beneficial effects that:

1. through the design of driving gear and driven gear be convenient for driving motor work and drive three gyro wheel simultaneously and rotate through the axis of rotation, driving motor work drives the axis of rotation and rotates, and the axis of rotation rotates and drives the driving gear and rotate, driving gear and driven gear meshing, and then the driving gear rotates and drives driven gear and rotate, drives the gyro wheel simultaneously and rotates, provides power for the wheelchair walking.

2. The supporting wheels are driven by the electric push rods to move to be attached to the ground, so that the guide wheels are jacked up, the guide wheels can conveniently climb up stairs, and the left end of the wheelchair can climb the stairs.

3. The linkage through sloping block and dwang promotes hexagonal prism and removes, realizes the fixed connection of triangle dish and axis of rotation, and at the supporting wheel in-process that moves down, the sloping block moves down and extrudes the dwang, and the dwang rotates and extrudes the plectane, and inside the plectane removed the hexagonal prism and removes entering hexagonal groove, the axis of rotation rotated this moment and drove the rotation of triangle dish and rotated, realized that the wheelchair right-hand member climbs the stair function.

Drawings

Fig. 1 is a schematic perspective view of a wheelchair with a function of going upstairs according to the present invention;

FIG. 2 is a schematic view of a rotating rod structure of a wheelchair with a function of going upstairs according to the present invention;

fig. 3 is a schematic structural view of a triangular plate of the wheelchair with the function of going upstairs provided by the utility model.

In the figure: 1. a base plate; 2. a seat frame; 3. a retractable plate; 4. a guide wheel; 5. a drive motor; 6. a rotating shaft; 7. a triangular plate; 8. a roller; 9. a rotation pin; 10. a driving gear; 11. a driven gear; 12. an electric push rod; 13. a support wheel; 14. a sloping block; 15. rotating the rod; 16. a U-shaped frame; 17. a circular plate; 18. a spring; 19. a hexagonal prism; 20. hexagonal groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent may be understood by those skilled in the art as appropriate.

Referring to fig. 1-3, a wheelchair with a function of going upstairs comprises a bottom plate 1, a seat frame 2, a retractable plate 3 and guide wheels 4, wherein the seat frame 2 is installed at the top end of the bottom plate 1 through bolts, the retractable plate 3 is installed at the left end of the bottom plate 1 in a sliding manner, a containing groove is formed in the left end of the bottom plate 1, the retractable plate 3 is installed in the containing groove in a sliding manner, double feet can be conveniently placed on the design of the retractable plate 3, the guide wheels 4 are fixedly installed on the left sides of the front end and the rear end of the bottom plate 1, the guide wheels 4 are designed to facilitate the steering of the wheelchair, a driving motor 5 is fixedly installed on the right side of the bottom end of the bottom plate 1, rotating shafts 6 are symmetrically installed at the front end and the rear end of the driving motor 5 through couplings, the rotating shafts 6 are rotatably installed at the bottom end of the bottom plate 1, supporting blocks are symmetrically installed at the bottom end of the bottom plate 1 and between the supporting blocks, and a triangular disc 7 is rotatably installed at one end, far away from the driving motor 5, through bearings, of the rotating shafts 6, and axis of rotation 6 extends to 7 insides of triangle dish and through key-type connection

installation driving gear

10, 7 triangle positions of triangle dish have all been seted up flutedly, and the recess is inside to rotate through the bearing and to install rotation pin 9, install driven gear 11 and gyro wheel 8 through the key-type connection on the 9 annular side of rotation pin, and driven gear 11 passes through bolted connection with gyro wheel 8, 11 annular sides of driven gear mesh mutually with 10 annular sides of driving gear,

driving gear

10 and 11 meshes mutually of driven gear, it drives 8 rotations of gyro wheel to be convenient for driving motor 5 work, provide power for the wheelchair removes.

In the utility model, when needing to be explained, the front end and the rear end of the bottom plate 1 are both fixedly provided with an electric push rod 12 through a connecting rod, the bottom end of the electric push rod 12 is provided with a supporting wheel 13, the supporting wheel 13 is designed to move downwards to jack up the left end of the bottom plate 1, so that the guide wheel 4 is separated from the ground, the guide wheel 4 is convenient to climb stairs, one end of the supporting wheel 13, far away from the bottom plate 1, is fixedly provided with an inclined block 14, the middle position of the front end and the rear end of the bottom plate 1 is fixedly provided with a U-shaped frame 16, the inside of the U-shaped frame 16 is rotatably provided with a rotating rod 15, the left end of the rotating rod 15 is attached to the inclined block 14, one end of the triangular plate 7, far away from the triangular plate 7, is provided with a hexagonal hole, the inside of the hexagonal hole is slidably provided with a hexagonal prism 19, one end of the hexagonal prism 19, far away from the triangular plate 7, is attached to the right end of the rotating rod 15, the supporting wheel 13 moves downwards to drive the inclined block 14 to move, and extrude the rotating rod 15, dwang 15 receives the extrusion to rotate around U type frame 16, and dwang 15 rotates the right-hand member and extrudes plectane 17, and then drives hexagonal prism 19 and removes inside getting into hexagonal groove 20, realizes the fixed connection of triangle dish 7 and axis of rotation 6, and then the axis of rotation 6 of being convenient for rotates and drives triangle dish 7 and rotate, realizes the stair function of climbing of wheelchair right-hand member.

Particularly, a circular plate 17 is fixedly arranged at one end of a hexagonal prism 19 far away from the triangular plate 7, a spring 18 is fixedly arranged at one end of the circular plate 17 close to the triangular plate 7, the other end of the spring 18 is fixedly arranged on the triangular plate 7, the spring 18 is arranged at the outer side of the hexagonal prism 19, the design of the spring 18 is convenient for the movement and the reset of the circular plate 17 and the hexagonal prism 19, a hexagonal groove 20 is formed at one end of a driving gear 10 fixedly arranged on the rotating shaft 6, the hexagonal groove 20 is aligned with the hexagonal prism 19 in the front-back direction, the size of the cross section of the hexagonal groove 20 is the same as that of the cross section of the hexagonal prism 19, the design of the hexagonal groove 20 is convenient for the fixed connection of the hexagonal prism 19 and the rotating shaft 6, the rotating shaft 6 drives the hexagonal prism 19 to rotate so as to drive the rotation of the triangular plate 7, a storage battery is fixedly arranged at the top end of the bottom plate 1 and is respectively electrically connected with the driving motor 5 and the electric push rod 12 through wires, the design of the storage battery is convenient for supplying power to the driving motor 5 and the electric push rod 12, two handle bars of 2 right-hand members symmetry fixed mounting of seat frame, and seted up anti-skidding line on the handle bar annular side, the design of handle bar is convenient for push away the wheelchair is whole.

The working principle is as follows: when the user needs to climb stairs, the user starts the electric push rod 12, the electric push rod 12 works to drive the support to move downwards to be attached to the ground, the guide wheel 4 is jacked up to be separated from the ground, the guide wheel 4 strides the stairs, the inclined block 14 moves downwards and extrudes the rotating rod 15 in the downward movement process of the support wheel 13, the rotating rod 15 rotates to extrude the circular plate 17, the circular plate 17 moves to drive the hexagonal prism 19 to move, the hexagonal prism 19 does not enter the hexagonal groove 20 at the moment of moving, the triangular disc 7 is not driven to rotate at the moment of moving, the roller 8 rotates to push the wheelchair to move forwards, the guide wheel 4 strides the stairs, when the roller 8 moves to the front of the stairs, the electric push rod 12 continues to work, the hexagonal prism 19 is pushed into the hexagonal groove 20, the stair rotating shaft 6 rotates to drive the triangular disc 7 to rotate at the moment of rotating, the climbing function is realized, and after the wheelchair finishes going upstairs, the electric push rod 12 works to fold the support wheel 13, make leading wheel 4 and ground laminating, supporting wheel 13 is packed up and is made sloping block 14 and dwang 15 separation, and under the effect of spring 18 elasticity, hexagonal prism 19 and plectane 17 remove and reset, and hexagonal prism 19 breaks away from hexagonal groove 20 inside, and driving motor 5 and axis of rotation 6 only can provide power for gyro wheel 8 this moment, and dwang 15 rotates under the plectane 17 extrusion and resets.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A wheelchair with a function of going up stairs, comprising a base plate (1), a seat frame (2), a telescopic plate (3) and a guide wheel (4), and a seat frame (2) is fixedly mounted on the top of the base plate (1) A telescopic plate (3) is slidably installed on the left end of the bottom plate (1), and guide wheels (4) are fixedly installed on the left side of the front and rear ends of the bottom plate (1), characterized in that the bottom end of the bottom plate (1) A drive motor (5) is fixedly installed on the right side, and a rotating shaft (6) is symmetrically installed at the front and rear ends of the drive motor (5). (6) A triangular disc (7) is rotatably installed at one end away from the drive motor (5), and the rotating shaft (6) extends into the interior of the triangular disc (7) and fixedly installs the driving gear (10). There are grooves at all positions, and a rotating pin (9) is rotatably installed in the groove, and a driven gear (11) and a roller (8) are fixedly installed on the annular side of the rotating pin (9), and the driven gear ( 11) It is fixedly connected with the roller (8), and the annular side surface of the driven gear (11) meshes with the annular side surface of the driving gear (10).

2. A wheelchair with a function of going up stairs according to claim 1, wherein the front and rear ends of the bottom plate (1) are fixedly installed with electric push rods (12) through connecting rods, and the electric push rods ( 12) A support wheel (13) is installed at the bottom end.

3. A wheelchair with a function of going up stairs according to claim 2, characterized in that an inclined block (14) is fixedly installed at one end of the support wheel (13) away from the bottom plate (1), and the bottom plate (1) A U-shaped frame (16) is fixedly installed at the middle positions of the front and rear ends, and a rotating rod (15) is rotatably installed inside the U-shaped frame (16), and the left end of the rotating rod (15) is fitted with the inclined block (14).

4. The wheelchair with the function of climbing stairs according to claim 1, characterized in that, a hexagonal hole is formed at one end of the triangular plate (7) away from the bottom plate (1), and a hexagonal hole is slidably installed inside the hexagonal hole. A prism (19), one end of the hexagonal prism (19) away from the triangular disk (7) is abutted with the right end of the rotating rod (15).

5. A wheelchair with a function of climbing stairs according to claim 4, wherein a circular plate (17) is fixedly installed at one end of the hexagonal column (19) away from the triangular plate (7), and the circular plate (17) ) A spring (18) is fixedly installed near one end of the triangular disc (7), the other end of the spring (18) is fixedly installed on the triangular disc (7), and the spring (18) is located outside the hexagonal column (19).

6. The wheelchair with the function of going up stairs according to claim 1, characterized in that, a hexagonal groove (20) is opened at one end of the driving gear (10) for the fixed installation of the rotating shaft (6), and the hexagonal groove (20) is aligned with the hexagonal prism (19) front and rear, and the size of the cross section of the hexagonal groove (20) is the same as that of the hexagonal prism (19).

7. A wheelchair with a function of climbing stairs according to claim 1, characterized in that a battery is fixedly installed on the top of the bottom plate (1), and the battery is connected to the drive motor (5) and the electric push rod ( 12) Make electrical connections.

8 . The wheelchair with stair climbing function according to claim 1 , wherein two handle bars are symmetrically and fixedly installed at the right end of the seat frame ( 2 ), and the annular side surfaces of the handle bars are provided with anti-slip lines. 9 .